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Finding the Fourth Proportional to 7,445,218.60, 10,402,048.40 and 7,445,218.60

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Solution

The fourth proportional to 7,445,218.60, 10,402,048.40 and 7,445,218.60 is: 10,402,048.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,445,218.60 : 10,402,048.40 = 7,445,218.60 : x
  2. Step 2: Convert to fraction form
    7,445,218.60/10,402,048.40 = 7,445,218.60/x
  3. Step 3: Cross multiply
    7,445,218.60x = 10,402,048.40 × 7,445,218.60
  4. Step 4: Simplify right side
    7,445,218.60x = 77,445,524,225,780.23
  5. Step 5: Solve for x
    x = 77,445,524,225,780.23/7,445,218.60
  6. Step 6: Final answer
    x = 10,402,048.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.