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Finding the Fourth Proportional to 8,730.60, 12,051.16 and 5,373.52

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Solution

The fourth proportional to 8,730.60, 12,051.16 and 5,373.52 is: 7,417.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,730.60 : 12,051.16 = 5,373.52 : x
  2. Step 2: Convert to fraction form
    8,730.60/12,051.16 = 5,373.52/x
  3. Step 3: Cross multiply
    8,730.60x = 12,051.16 × 5,373.52
  4. Step 4: Simplify right side
    8,730.60x = 64,757,149.28
  5. Step 5: Solve for x
    x = 64,757,149.28/8,730.60
  6. Step 6: Final answer
    x = 7,417.26

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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.