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Finding the Fourth Proportional to 14,547.41, 20,075.42 and 7,923.41

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Solution

The fourth proportional to 14,547.41, 20,075.42 and 7,923.41 is: 10,934.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,547.41 : 20,075.42 = 7,923.41 : x
  2. Step 2: Convert to fraction form
    14,547.41/20,075.42 = 7,923.41/x
  3. Step 3: Cross multiply
    14,547.41x = 20,075.42 × 7,923.41
  4. Step 4: Simplify right side
    14,547.41x = 159,065,783.58
  5. Step 5: Solve for x
    x = 159,065,783.58/14,547.41
  6. Step 6: Final answer
    x = 10,934.30

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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.