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Finding the Fourth Proportional to 10,478.68, 14,460.18 and 5,762.68

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Solution

The fourth proportional to 10,478.68, 14,460.18 and 5,762.68 is: 7,952.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,478.68 : 14,460.18 = 5,762.68 : x
  2. Step 2: Convert to fraction form
    10,478.68/14,460.18 = 5,762.68/x
  3. Step 3: Cross multiply
    10,478.68x = 14,460.18 × 5,762.68
  4. Step 4: Simplify right side
    10,478.68x = 83,329,390.08
  5. Step 5: Solve for x
    x = 83,329,390.08/10,478.68
  6. Step 6: Final answer
    x = 7,952.28

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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.