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Finding the Fourth Proportional to 19,047.74, 28,574.88 and 6,569.06

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Solution

The fourth proportional to 19,047.74, 28,574.88 and 6,569.06 is: 9,854.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,047.74 : 28,574.88 = 6,569.06 : x
  2. Step 2: Convert to fraction form
    19,047.74/28,574.88 = 6,569.06/x
  3. Step 3: Cross multiply
    19,047.74x = 28,574.88 × 6,569.06
  4. Step 4: Simplify right side
    19,047.74x = 187,710,101.21
  5. Step 5: Solve for x
    x = 187,710,101.21/19,047.74
  6. Step 6: Final answer
    x = 9,854.72

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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.