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Finding the Fourth Proportional to 5,417.28, 7,430.13 and 5,009.04

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Solution

The fourth proportional to 5,417.28, 7,430.13 and 5,009.04 is: 6,870.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,417.28 : 7,430.13 = 5,009.04 : x
  2. Step 2: Convert to fraction form
    5,417.28/7,430.13 = 5,009.04/x
  3. Step 3: Cross multiply
    5,417.28x = 7,430.13 × 5,009.04
  4. Step 4: Simplify right side
    5,417.28x = 37,217,818.38
  5. Step 5: Solve for x
    x = 37,217,818.38/5,417.28
  6. Step 6: Final answer
    x = 6,870.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.