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Finding the Fourth Proportional to 4,707.61, 7,061.03 and 1,587.55

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Solution

The fourth proportional to 4,707.61, 7,061.03 and 1,587.55 is: 2,381.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,707.61 : 7,061.03 = 1,587.55 : x
  2. Step 2: Convert to fraction form
    4,707.61/7,061.03 = 1,587.55/x
  3. Step 3: Cross multiply
    4,707.61x = 7,061.03 × 1,587.55
  4. Step 4: Simplify right side
    4,707.61x = 11,209,738.18
  5. Step 5: Solve for x
    x = 11,209,738.18/4,707.61
  6. Step 6: Final answer
    x = 2,381.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.