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Finding the Fourth Proportional to 7,154.68, 9,873.76 and 4,011.08

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Solution

The fourth proportional to 7,154.68, 9,873.76 and 4,011.08 is: 5,535.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,154.68 : 9,873.76 = 4,011.08 : x
  2. Step 2: Convert to fraction form
    7,154.68/9,873.76 = 4,011.08/x
  3. Step 3: Cross multiply
    7,154.68x = 9,873.76 × 4,011.08
  4. Step 4: Simplify right side
    7,154.68x = 39,604,441.26
  5. Step 5: Solve for x
    x = 39,604,441.26/7,154.68
  6. Step 6: Final answer
    x = 5,535.46

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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.