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Finding the Fourth Proportional to 7,125.45, 9,810.63 and 6,061.11

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Solution

The fourth proportional to 7,125.45, 9,810.63 and 6,061.11 is: 8,345.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,125.45 : 9,810.63 = 6,061.11 : x
  2. Step 2: Convert to fraction form
    7,125.45/9,810.63 = 6,061.11/x
  3. Step 3: Cross multiply
    7,125.45x = 9,810.63 × 6,061.11
  4. Step 4: Simplify right side
    7,125.45x = 59,463,307.60
  5. Step 5: Solve for x
    x = 59,463,307.60/7,125.45
  6. Step 6: Final answer
    x = 8,345.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.