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Finding the Fourth Proportional to 7,918.32, 11,875.86 and 5,002.32

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Solution

The fourth proportional to 7,918.32, 11,875.86 and 5,002.32 is: 7,502.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,918.32 : 11,875.86 = 5,002.32 : x
  2. Step 2: Convert to fraction form
    7,918.32/11,875.86 = 5,002.32/x
  3. Step 3: Cross multiply
    7,918.32x = 11,875.86 × 5,002.32
  4. Step 4: Simplify right side
    7,918.32x = 59,406,852.00
  5. Step 5: Solve for x
    x = 59,406,852.00/7,918.32
  6. Step 6: Final answer
    x = 7,502.46

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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.